21231784

素因数分解:

$2^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{10247}}^1$

素因数の和:10297

約数の個数: 32

約数和(自身を含む): 46730880

約数和(自身を除く): 25499096

約数列:

[1, 2, 4, 7, 8, 14, 28, 37, 56, 74, 148, 259, 296, 518, 1036, 2072, 10247, 20494, 40988, 71729, 81976, 143458, 286916, 379139, 573832, 758278, 1516556, 2653973, 3033112, 5307946, 10615892, 21231784]

約数ペア:

[(1, 21231784), (2, 10615892), (4, 5307946), (7, 3033112), (8, 2653973), (14, 1516556), (28, 758278), (37, 573832), (56, 379139), (74, 286916), (148, 143458), (259, 81976), (296, 71729), (518, 40988), (1036, 20494), (2072, 10247)]